The role of cavitation and gas bubbles in the non-photochemical laser-induced nucleation of sodium acetate

An experimental study of the effects of the sodium salt of poly(methacrylic acid) (Na-PMAA) on non-photochemical laser-induced nucleation (NPLIN) of sodium acetate crystals is presented. Seeding of supersaturated aqueous solutions with anhydrous (AH) seeds always produced trihydrate (TH) crystals, w...

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Bibliographic Details
Published in:CrystEngComm 2024-07, Vol.26 (27), p.3634-3642
Main Authors: Barber, Eleanor R, Ward, Martin R, Alexander, Andrew J
Format: Article
Language:English
Subjects:
Aqueous solutions
Bubbles
Cavitation
Crystals
High temperature
Laser beam heating
Lasers
Nanoparticles
Nucleation
Polymethacrylic acid
Sodium
Sodium acetate
Sodium salts
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Summary:An experimental study of the effects of the sodium salt of poly(methacrylic acid) (Na-PMAA) on non-photochemical laser-induced nucleation (NPLIN) of sodium acetate crystals is presented. Seeding of supersaturated aqueous solutions with anhydrous (AH) seeds always produced trihydrate (TH) crystals, with or without polymer additive. Using NPLIN, with no Na-PMAA and at low Na-PMAA concentrations (0.25% w/w) AH sodium acetate was produced, firstly as plate-like form IV, but subsequently growing needles, likely to be form I. At high Na-PMAA concentrations (0.73% w/w) we observe formation mostly of stable bubbles. In all samples at low laser peak power densities (
ISSN:1466-8033
1466-8033
DOI:10.1039/d4ce00487f